Question

Match the columns

	Column I		Column II
(i)	Macrosclereids	(a)	Hair-like cells in Montera roots
(ii)	Osteosclereids	(b)	Bone-like cells
(iii)	Astroschlereids	(c)	Star-shaped cells
(iv)	Trichoschlereids	(d)	Stone-like cells in seed coat

• A. (i) d (ii) b (iii) c (iv) a
• B. (i) a (ii) b (iii) c (iv) d
• C. (i) b (ii) a (iii) c (iv) d
• D. (i) c (ii) b (iii) a (iv) d

Answer 1

The correct option is A (i) d (ii) b (iii) c (iv) a

Macrosclereids - They are elongated sclereids usually found in the outer layer in the seed coat of legume seeds. Osterosclereids - (also called bone or hour-glass cells) are columnar cells similar to macrosclereids except they are enlarged at the ends making them bone-shaped. Astrosclereids - They are branched, pointed, irregular (often star - shaped) sclereids. Astrosclereids are not a common type of sclereid. They can be found in specialized tissues like the floating leaves of water lily. Trichosclereids - These are uncommon cells. They can be found in the leaves of olive and the aerial roots of the Swiss cheese plant (Monstera sp.). These long trichosclereids are from macerated roots of the Swiss cheese plant.

So, the correct answer is '(i) d (ii) b (iii) c (iv) a.'